CN116722385A

CN116722385A - Self-destroying electrical connector, disposable endoscope handle and disposable endoscope

Info

Publication number: CN116722385A
Application number: CN202311008956.1A
Authority: CN
Inventors: 周震华; 张翔; 莫文军
Original assignee: Hunan Vathin Medical Instrument Co Ltd
Current assignee: Hunan Vathin Medical Instrument Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2023-09-08
Anticipated expiration: 2043-08-11
Also published as: CN116722385B

Abstract

The invention provides a self-destroying electrical connector, a disposable endoscope handle and a disposable endoscope, relates to the field of medical appliances, and solves the problem that the reuse of the disposable endoscope cannot be effectively stopped in the prior art. The self-destroying pin needle jack of the socket is in sealing connection with the first sealing element and the second sealing element, a closed hole section is formed between the second sealing element and the first sealing element, and one electric connecting element arranged on the first sealing element is arranged in one closed hole section; the flowable conductive medium is filled in the closed pore section. According to the invention, the flowable conductive medium is filled in the closed hole section, the pin needle pierces the second sealing element to enter the closed hole section during the insertion, the flowable conductive medium is electrically connected with the electric connecting element, and the flowable conductive medium is discharged out of the closed hole section through the second sealing element after the pin needle is pulled out, so that the amount of the flowable conductive medium in the closed hole section is reduced, and the electric connection relation between the pin needle and the electric connecting element can not be established in the closed hole section, thereby achieving the purpose of effectively preventing reuse.

Description

Self-destroying electrical connector, disposable endoscope handle and disposable endoscope

Technical Field

The invention relates to the field of medical equipment, in particular to a self-destroying electrical connector, a disposable endoscope handle and a disposable endoscope.

Background

The endoscope is used for directly entering the natural cavity of the human body for examination, provides sufficient diagnosis information for doctors, and is required to be plugged onto the host through a cable at the near end of the endoscope during use so as to realize signal interaction and normal use, and the cable at the near end of the endoscope is connected with the host through an electric connector.

In order to avoid cross infection caused by repeated use of the endoscope, disposable endoscopes have been developed. In order to ensure that the disposable endoscope cannot be reused, the invention patent application with the application publication number of CN115299845A discloses a disposable endoscope, a first mechanical joint part on a handle of the disposable endoscope is in undetachable connection with a second mechanical joint part on a connector which is in electric signal connection with the handle, and particularly, a locking structure is formed by mutually buckling a locking device in a groove of the first mechanical joint part and a baffle piece arranged on the outer wall of a connector of the second mechanical joint part, so that a undetachable stable connection relationship is realized, once the handle is separated from the connector, the locking structure is completely destroyed in the process of pulling the handle, the connection between the handle and the connector is completely destroyed, the endoscope cannot be used secondarily, and the possibility of cross infection is avoided.

Even if the mechanical locking structure is damaged, a user can forcedly plug and hold the handle and the connector, so that the first electric joint part and the second electric joint part are matched, the electric signal connection of the first electric joint part and the second electric joint part is maintained, and the repeated use condition of the disposable endoscope cannot be effectively stopped.

Disclosure of Invention

One of the purposes of the invention is to design a self-destroying electrical connector, a disposable endoscope handle and a disposable endoscope, which are used for solving the problem that the prior art cannot effectively stop the reuse of the disposable endoscope.

The invention is realized by the following technical scheme:

the invention provides a self-destruction electric connector, which comprises a socket, an electric connector and a flowable conductive medium; the socket is provided with at least one axial self-destroying pin needle jack, a section of closed hole section with two closed ends is formed in the self-destroying pin needle jack, and the end part of the closed hole section, which is close to the starting end of the self-destroying pin needle jack, is arranged to be capable of being penetrated by a pin needle to lose the sealing capability of the closed hole section; one end of the electric connector is arranged in the airtight Kong Duanzhong, and the other end of the electric connector is positioned in the airtight hole Duan Wai, wherein one electric connector is arranged in one airtight hole section; the flowable-state conductive medium is filled in the seal Kong Duanzhong, and is used for electrically connecting the electrical connector with the pin needle penetrating into the sealed hole section in the seal Kong Duanzhong, and after the flowable-state conductive medium flows out of the sealed hole section, the electrical connection relationship between the pin needle and the electrical connector cannot be established in the sealed hole section.

When the arrangement structure is adopted, the flowable conducting medium with the conducting capacity is filled in the closed hole section of the self-destroying pin needle jack, so that the closed hole section has the capacity of establishing indirect electric connection between two electric connection pieces through the flowable conducting medium, and therefore, when the self-destroying electric connector is inserted, the pin needle aligned with the self-destroying pin needle jack can establish an electric connection relationship with the electric connection pieces in the closed hole section through the flowable conducting medium after penetrating into the closed hole section. Meanwhile, the sealing hole Duan Hui punctured by the pin needle loses the sealing capability of the flowable conducting medium, so that the flowable conducting medium can leak out of the sealing hole section from the puncture point, and after the pin needle is plugged and pulled out of the self-destruction electric connector, the flowable conducting medium can leak out of the sealing hole section through the puncture point, so that the amount of the flowable conducting medium in the sealing hole section is reduced, and the electrical connection relation between the pin needle and the electrical connector cannot be established in the sealing hole section, thereby achieving the purpose of preventing multiplexing. Therefore, the self-destroying electrical connector can be applied to the disposable endoscope, so that the disposable use of the disposable endoscope can be effectively ensured, and the repeated use of the disposable endoscope is stopped.

Further, in order to better realize the invention, the following arrangement structure is adopted: the end of the closed hole section, which is close to the beginning end of the self-destroying pin needle jack, is sealed through a second sealing piece, and the second sealing piece is in sealing connection with the beginning end of the self-destroying pin needle jack, or the second sealing piece is in sealing connection with the middle section of the self-destroying pin needle jack.

By adopting the arrangement structure, the second sealing element is arranged at the initial end of the self-destroying pin needle jack, so that the flowable conductive medium can be discharged from the self-destroying pin needle jack in time after one-time insertion and distribution, and the multiplexing can be effectively prevented. The second sealing element is arranged in the middle section of the self-destroying pin needle jack, compared with the time when the second sealing element is arranged at the starting end, the time for discharging the flowable conducting medium from the starting end of the self-destroying pin needle jack can be delayed, the operation response time is given to people, and the flowable conducting medium can be effectively prevented from flowing out to pollute the ground or equipment or cables.

Further, in order to better realize the invention, the following arrangement structure is adopted: the socket comprises a front seat body and a rear seat body which are sequentially butted along the axial direction; when the second sealing element is in sealing connection with the middle section of the self-destroying pin needle jack, the front seat body and the rear seat body clamp the second sealing element and/or the self-destroying pin needle jack at the closed hole section, and the aperture of the self-destroying pin needle jack is larger than that of other hole sections.

When the structure is adopted, when the second sealing element is in sealing connection with the middle section of the self-destroying pin needle jack, the mode that the second sealing element is clamped between the front seat body and the rear seat body can facilitate the assembly of the second sealing element. The aperture of the self-destroying pin needle jack at the closed hole section is larger than the aperture of other hole sections, so that the annulus between the pin needle and the closed hole section is increased, the flowing space of the flowing conductive medium in the closed hole section can be increased, and the pin needle can be smoothly inserted.

Further, in order to better realize the invention, the following arrangement structure is adopted: the front end face of the rear seat body is provided with a mounting groove, and the second sealing element is accommodated in the mounting groove.

When adopting above-mentioned setting structure, second sealing member holding can not occupy axial space alone in the mounting groove, can guarantee that the pedestal is equipped with the second sealing member under the condition, and axial dimension is designed short enough.

Further, in order to better realize the invention, the following arrangement structure is adopted: when the second sealing piece is in sealing connection with the middle section of the self-destruction pin needle jack, a liquid scraping structure is arranged in the self-destruction pin needle jack, the liquid scraping structure is positioned on one side, close to the starting end of the self-destruction pin needle jack, of the second sealing piece, and the liquid scraping structure can be in contact with the circumferential surface of a pin needle inserted into the self-destruction pin needle jack so as to scrape the flowable conductive medium attached to the pin needle jack.

When adopting above-mentioned setting structure, the setting of scraping liquid structure can effectively strike off remaining mobility conductive medium on the pin needle, avoids the mobility conductive medium that is stained with on the pin needle to lead to pin needle corrosion or pollution environment and human body.

Further, in order to better realize the invention, the following arrangement structure is adopted: the self-destroying pin needle jacks are provided with a plurality of self-destroying pin needle jacks; the second sealing member is arranged as a plate body and is in sealing connection with all the self-destroying pin needle jacks at the same time, and/or structural strength of the second sealing member at the position corresponding to the self-destroying pin needle jacks is set to be weaker than that of other positions.

When the structure is adopted, the second sealing piece of the plate body is in sealing connection with all the self-destruction pin needle jacks at the same time, so that one second sealing piece can complete the sealing requirement, and parts are fewer enough, so that the installation steps are reduced. The structural strength of the second sealing member corresponding to the position of the self-destruction pin needle jack is weak, so that other parts are effectively prevented from being broken in the process of puncturing the second sealing member by the pin needle, and the flowing conductive medium flows into other self-destruction pin needle jacks through the broken part bit stream to cause short circuit.

Further, in order to better realize the invention, the following arrangement structure is adopted: and a sealing ring which is axially sealed with the self-destroying pin needle jack is connected to the second sealing piece at the position corresponding to the self-destroying pin needle jack, and the sealing ring can be penetrated by a pin needle inserted into the self-destroying pin needle jack and is radially sealed with the circumferential surface of the pin needle.

By adopting the arrangement structure, after the sealing ring is arranged at the position corresponding to the self-destroying pin needle jack on the second sealing piece, the shaft end sealing effect of the closed hole section during pin needle insertion can be improved, the leakage of the flowing conductive medium in the inserting and matching process can be effectively avoided, and the electric connection effect in the using process is ensured.

Further, in order to better realize the invention, the following arrangement structure is adopted: when the second sealing piece is in sealing connection with the middle section of the self-destroying pin needle jack, a liquid draining flow passage is arranged in the socket, the liquid draining flow passage is positioned on one side, close to the starting end of the self-destroying pin needle jack, of the second sealing piece, one end of the liquid draining flow passage is communicated with at least one self-destroying pin needle jack, and the other end of the liquid draining flow passage is formed at the outer peripheral surface of the socket.

By adopting the arrangement structure, the flowing conductive medium can flow out from the side of the socket due to the arrangement of the liquid discharge flow channel, so that the flowing conductive medium can be discharged in time while the flowing conductive medium is prevented from flowing out of the pollution equipment along the axial direction, the probability of quickly raising the self-destroying pin needle jack to enable the flowing conductive medium to flow back after the self-destroying electric connector is quickly pulled out can be effectively reduced, and reuse is effectively avoided.

Further, in order to better realize the invention, the following arrangement structure is adopted: the self-destroying electrical connector further comprises an outer insulating sleeve, and the socket is sleeved with the outer insulating sleeve; the liquid discharge device comprises a liquid discharge channel, and is characterized in that an extension flow channel is arranged in the outer insulating sleeve, one end of the extension flow channel is connected with a flow channel opening of the liquid discharge flow channel, the other end of the extension flow channel is formed at the outer peripheral surface of the outer insulating sleeve, or a sealed liquid waste cavity is arranged in the outer insulating sleeve and communicated with the liquid discharge flow channel, a ventilation pore channel is further formed in the outer insulating sleeve, one end of the ventilation pore channel is communicated with the liquid waste cavity, and the other end of the ventilation pore channel is communicated with the outer environment.

When the arrangement structure is adopted, the extending flow passage arranged on the outer insulating sleeve can guide the flowing conductive medium in the liquid discharge flow passage to be discharged through the outer insulating sleeve. The waste liquid cavity that the outer insulating sleeve set up can store the mobility conductive medium of discharging in the flowing back runner, avoids mobility conductive medium to discharge to the pollution ground or equipment or cable in the environment.

The invention also provides a disposable endoscope handle, which comprises a handle main body and a connecting cable;

The handle main body is detachably connected with the connecting cable through an electric connector, the electric connector comprises a first electric connector and a second electric connector, the first electric connector is arranged on the handle main body, the first electric connector adopts the self-destruction electric connector, or the handle main body is electrically connected with the connecting cable, a third electric connector is arranged at the host connecting end of the connecting cable, and the third electric connector adopts the self-destruction electric connector.

The invention also provides a disposable endoscope, which comprises the disposable endoscope handle.

The invention has the following advantages and beneficial effects:

in the invention, the flowing conductive medium with conductive capacity is filled in the closed hole section of the self-destroying pin needle jack, so that the closed hole section has the capacity of establishing indirect electric connection between two electric connection pieces through the flowing conductive medium, and thus, when the self-destroying electric connector is inserted, the pin needle aligned to the self-destroying pin needle jack can establish electric connection relation with the electric connection pieces in the closed hole section through the flowing conductive medium after penetrating into the closed hole section. Meanwhile, the sealing hole Duan Hui punctured by the pin needle loses the sealing capability of the flowable conducting medium, so that the flowable conducting medium can leak out of the sealing hole section from the puncture point, and after the pin needle is plugged and pulled out of the self-destruction electric connector, the flowable conducting medium can leak out of the sealing hole section through the puncture point, so that the amount of the flowable conducting medium in the sealing hole section is reduced, and the electrical connection relation between the pin needle and the electrical connector cannot be established in the sealing hole section, thereby achieving the purpose of preventing multiplexing. Therefore, the self-destroying electrical connector can be applied to the disposable endoscope, so that the disposable use of the disposable endoscope can be effectively ensured, and the repeated use of the disposable endoscope is stopped.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an external structure of a connecting cable using a self-destructing electrical connector;

FIG. 2 illustrates the internal structure of the outer insulating sleeve of the self-destructing electrical connector of one embodiment;

fig. 3 further illustrates the internal structure of the receptacle of fig. 2;

FIG. 4 shows the assembled structure of the front and rear housings;

FIG. 5 shows one configuration of the second seal;

FIG. 6 shows a configuration in which the second seal is fitted with a seal ring;

fig. 7 shows the internal structure of the self-destructing electrical connector when the pin is inserted;

FIG. 8 shows the internal structure of a self-destructing electrical connector according to another embodiment;

fig. 9 shows the structure of the disposable endoscope of the present invention.

Marked in the figure as:

1. a socket; 1a, a front seat body; 1b, a rear seat body; 1b1, mounting grooves; 11. self-destroying pin needle insertion holes; 11a, sealing the hole section; 12. a liquid discharge flow channel;

2. A first seal; 21. an electrical connection;

3. a second seal; 31. a puncture part;

4. a flowable conductive medium;

5. a seal ring;

6. a liquid scraping structure;

7. an outer insulating sleeve; 71. extending the flow channel; 72. a waste liquid chamber; 73. a ventilation duct; 74. a positioning key; 75. arrows;

8. a handle body;

9. and (5) connecting the cables.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.

In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.

In the embodiments of the present application, the "start end" of the self-destructing pin insertion hole 11 refers to an end portion of the self-destructing pin insertion hole 11 for receiving a start end of a pin, at which the pin realizes switching between the inserted and extracted states, and the "end" of the self-destructing pin insertion hole 11 is the other end opposite to the "start end" in the axial direction. Wherein, the beginning end and the end also respectively correspond to the front relation and the back relation.

In the related art, a side electrical connector is also installed on the host end, although the locking device can be damaged by pulling the handle after the electrical connectors are butted to form the electrical connector, the purpose of damaging the locking structure is achieved, the electrical connector on the host end can be damaged, the connection structure of the electrical connector and the host can be influenced, the situation that the electrical connector is loose is caused, and the service life of the host is damaged. Therefore, providing a solution to the problem of damaging the electrical connector on the host side by damaging only the electrical connector on the host side after one plug.

On the one hand, the application provides a self-destroying electrical connector, which is used as a component part of the electrical connector, and can destroy the electrical connection function of the self-destroying electrical connector through a single plugging action so as to achieve the purpose of disposable use, thereby effectively ensuring that a handle main body adopting the self-destroying electrical connector can be destroyed after being used once, and effectively avoiding the repeated use of a disposable endoscope, and particularly comprises the following structures as shown in fig. 1-8:

as shown in fig. 2-8, the self-destructing electrical connector includes a socket 1, an electrical connector 21, and a flowable conductive medium 4.

The socket 1 belongs to a part of one of the electrical connectors, which can be structurally improved or redesigned based on the existing electrical connector, but at least ensures that the socket 1 can complete the connection and disconnection with the pin according to the existing axial insertion formula.

As shown in fig. 2, the socket 1 has a substantially cylindrical structure, and its cross-sectional shape may be circular or polygonal such as rectangular, triangular, etc., and this embodiment takes a circular cross-sectional shape as an example. The socket 1 is provided with at least one self-destroying pin needle jack 11 which penetrates through the socket in the axial direction, the self-destroying pin needle jack 11 is a hole matched with the pin needle shape of the other electrical connector, and the pin needle can be guided when the pin needle is inserted into the hole. The self-destroying pin needle jack 11 cannot establish an electrical connection relationship with a pin needle inserted therein, for example, no needle tube or a female pin needle is provided in the self-destroying pin needle jack 11.

As shown in fig. 2 to 8, a closed hole section 11a with both ends closed is formed in the self-destructing pin needle insertion hole 11, and the end of the closed hole section 11a near the start end of the self-destructing pin needle insertion hole 11 (i.e., the start end or the front end of the closed hole section 11 a) is configured to be pierced by a pin needle to lose the sealing ability to the closed hole section 11 a.

As shown in fig. 3, one end of the electrical connector 21 is disposed in the closed hole section 11a, and one electrical connector 21 is disposed in one closed hole section 11a correspondingly. The electrical connector 21 is used to establish an electrical connection with the pin needle so that it can obtain power through the pin needle or transmit signals to the host end, and therefore, the other end of the electrical connector 21 needs to be located outside the closed hole section 11 a. The sealed aperture segment 11a has a sealing relationship with the electrical connector 21 and no leakage points are formed at the electrical connector 21.

The flowable conductive medium 4 is a medium having certain fluidity and conductive properties, and may be, for example, a conductive solution, a liquid conductive paste, a liquid metal conductive liquid, a conductive paste, or the like, such as mercury, a salt solution, a conductive silver paste, or the like. As shown in fig. 3, the flowable conductive medium 4 is pre-filled in the closed pore section 11a by pouring. The flowable conductive medium 4 serves as an intermediate conductive medium for electrically connecting the electrical connector 21 in the closed cell segment 11a to a pin needle penetrating into the closed cell segment 11 a.

The flowing conductive medium 4 with the conductive capability is filled in the closed hole section 11a of the self-destroying pin needle jack 11 in a filling manner, so that the closed hole section 11a has the capability of establishing indirect electrical connection between two electrical connectors through the flowing conductive medium 4, and thus, when the self-destroying electrical connector is plugged, the pin needle aligned with the self-destroying pin needle jack 11 can establish an electrical connection relationship with the electrical connector 21 in the closed hole section 11a through the flowing conductive medium 4 after penetrating into the closed hole section 11 a. Meanwhile, the sealing capability of the mobile conductive medium 4 can be lost in the sealed hole section 11a after the pin needle is pierced, so that the mobile conductive medium 4 can leak out of the sealed hole section 11a from the piercing point, after the pin needle is plugged into and pulled out of the self-destruction electric connector, the mobile conductive medium 4 can leak out of the sealed hole section 11a through the piercing point, the quantity of the mobile conductive medium 4 in the sealed hole section 11a is reduced, and the electric connection relation between the pin needle and the electric connector 21 can not be established in the sealed hole section 11a, so that the aim of preventing multiplexing is achieved. Therefore, the self-destroying electrical connector can be applied to the disposable endoscope, so that the disposable use of the disposable endoscope can be effectively ensured, and the repeated use of the disposable endoscope is stopped.

According to some alternative embodiments, as shown in fig. 2-8, the closed bore section 11a of the self-destructing pin needle insertion hole 11 is sealed at both ends by the first sealing member 2 and the second sealing member 3, forming a closed space. The first sealing member 2 may be a circuit board, the electrical connection member 21 may be a part of a circuit formed on the circuit board, and the electrical connection member 21 forms an electrical connection welding spot on a side board surface of the circuit board, where the electrical connection welding spot is used to directly establish an electrical connection with the pin needle, so that the circuit board can obtain electric power through the pin needle or transmit signals to a host end. The first sealing piece 2 is in sealing connection with the self-destroying pin needle jack 11, and one end of a hole section of the self-destroying pin needle jack 11 is closed. The second sealing element 3 is in sealing connection with the self-destroying pin needle jack 11, and the other end of the hole section of the self-destroying pin needle jack 11 is sealed, so that the hole section of the self-destroying pin needle jack 11 between the second sealing element 3 and the first sealing element 2 forms a sealed hole section 11a with two ends sealed. The second sealing member 3 is a structure, such as a plastic sheet, a film, etc., at least a part of which is easily broken by piercing, and can be pierced by the pin needle to lose the sealing ability against the self-destructing pin needle insertion hole 11. The flowable conductive medium 4 is filled in advance in the closed hole section 11a of which one end has been sealed by pouring, and then the other end is sealed by connecting the first seal member 2 or the second seal member 3.

According to some alternative embodiments, as shown in fig. 1-2 and fig. 7-8, the first sealing member 2 is disposed at the end of the socket 1, and is connected with the end of the self-destructing pin needle insertion hole 11 in a sealing manner through a side plate surface formed with an electrical connection welding point. This arrangement of the first sealing member 2 allows for a simple assembly of the first sealing member 2 with the socket 1. The arrangement positions of the second sealing elements 3 are selected at two places, one of the second sealing elements 3 is arranged at the initial end of the socket 1 and is in sealing connection with the initial end of the self-destroying pin needle jack 11, so that the second sealing elements 3 and the first sealing elements 2 seal the corresponding initial end and tail end on the self-destroying pin needle jack 11 at the same time, and all hole sections of the self-destroying pin needle jack 11 form a sealed hole section 11a with two sealed ends; second, as shown in fig. 3, 7 and 8, the second sealing member 3 is disposed at the middle section of the socket 1, so that the second sealing member 3 is in sealing connection with the middle section of the self-destructing pin needle jack 11, and the self-destructing pin needle jack 11 is sealed and separated into a front section and a rear section, so that the rear section of the self-destructing pin needle jack 11 is used as a closed hole section 11a. The second sealing element 3 is arranged at the beginning end of the self-destroying pin needle jack 11, so that the flowable conducting medium 4 can be discharged from the self-destroying pin needle jack 11 in time after one-time insertion and matching, and multiplexing can be effectively prevented. The second sealing element 3 is arranged in the middle section of the self-destroying pin needle jack 11, compared with the middle section arranged at the initial end, the flow path can be increased, the time for discharging the flowable conducting medium 4 from the initial end of the self-destroying pin needle jack 11 is delayed, the operation response time is given to people, and the flowable conducting medium 4 can be effectively prevented from flowing out to pollute the ground or equipment or cables. In addition, the second sealing element 3 is arranged at the middle section of the self-destroying pin needle jack 11, so that the pin needle can be inserted into the deeper position of the self-destroying pin needle jack 11 and then the second sealing element 3 is punctured, and the pin needle can be prevented from deforming during forceful puncturing by utilizing the longer self-destroying pin needle jack 11 to provide limit support for the pin needle.

According to some alternative embodiments, as shown in fig. 2-4 and 7-8, the socket 1 includes a front housing 1a and a rear housing 1b that are sequentially butted in an axial direction. The front end of the back seat body 1b is provided with the tenon, the rear end of the front seat body 1a is provided with the tenon slot aligned with the tenon, the tenon of the back seat body 1b stretches into the tenon slot of the front seat body 1a to provide circumferential rotation stopping limit for the front seat body 1a, and when the front seat body and the back seat body are assembled, the tenon and the tenon slot are matched to facilitate the assembly of the front seat body 1 a. When the second sealing member 3 is arranged in the middle section of the socket 1 and is in sealing connection with the middle section of the self-destroying pin needle jack 11, the front seat body 1a and the rear seat body 1b clamp and fix the second sealing member 3 back and forth. When the second sealing element 3 is in sealing connection with the middle section of the self-destroying pin needle jack 11, the front seat body 1a and the rear seat body 1b clamp the second sealing element 3 back and forth, so that the second sealing element 3 can be conveniently assembled. Preferably, as shown in fig. 4, the front end surface of the rear seat body 1b is provided with mounting grooves 1b1, the number of the mounting grooves 1b1 is consistent with the number of the second sealing elements 3, so that the second sealing elements 3 can be accommodated in the mounting grooves 1b1 for positioning, the groove depth of the mounting grooves 1b1 is equal to the thickness of the second sealing elements 3, the second sealing elements 3 are accommodated in the mounting grooves 1b1 stably without shaking, the sealing effect of the second sealing elements 3 is ensured, the second sealing elements 3 can occupy no axial space independently, and the axial dimension of the rear seat body 1b can be ensured to be designed to be short enough under the condition that the second sealing elements 3 are assembled.

According to some alternative embodiments, the socket 1 is provided with a plurality of pin jacks, wherein the self-destroying pin jack 11 may be provided with one or a plurality of pin jacks, such as two, three, four, etc., and the remaining pin jacks are conventional jacks, so that the length of the self-destroying pin jack 11 is either longer than that of the conventional pin jack, so that a pin can not contact with an electrical connection pad of the electrical connector 21 when inserted into the closed hole section 11a, or the pin corresponding to the self-destroying pin jack 11 is set to be shorter than that of the remaining pin. Preferably, as shown in fig. 3-4 and fig. 7-8, all pin needle jacks are set as self-destructing pin needle jacks 11 on the socket 1.

According to some alternative embodiments, as shown in fig. 3 and 5-8, the second sealing member 3 is provided as a plate body, and the shape of the plate body is not limited, for example, circular, so long as it can cover all the self-destructing pin needle insertion holes 11, and the second sealing member 3 is located at the junction of the front seat body 1a and the rear seat body 1b, and is sealed by end faces facing one end of the sealed hole section 11 a. The second sealing element 3 is one piece and is in sealing connection with all the self-destruction pin needle insertion holes 11, so that the second sealing element 3 is not required to be arranged independently on each self-destruction pin needle insertion hole 11, and the sealing requirement is met through one second sealing element 3, so that the number of parts is small enough, and the installation steps are reduced.

According to some alternative embodiments, as shown in fig. 3-4 and fig. 7-8, in the case that the second sealing element 3 is disposed in the middle section of the socket 1 and is in sealing connection with the middle section of the self-destroying pin needle jack 11, the aperture of the self-destroying pin needle jack 11 at the closed hole section 11a is larger than the aperture of the other hole sections, that is, the hole section from the beginning end of the self-destroying pin needle jack 11 to the second sealing element 3 is a small aperture, and the hole section from the second sealing element 3 to the first sealing element 2 is a large aperture. The arrangement mode that the aperture of the self-destruction pin needle jack 11 at the closed hole section 11a is larger than that of other hole sections is that the pin needle is inserted into the closed hole section 11a, so that the annulus between the pin needle jack and the closed hole section 11a is increased, the flowing space of the flowing conductive medium 4 in the closed hole section 11a can be improved, and the pin needle is smoothly inserted.

According to some alternative embodiments, as shown in fig. 3-4 and fig. 7-8, in the case that the second sealing member 3 is disposed in the middle section of the socket 1 and is in sealing connection with the middle section of the self-destroying pin needle jack 11, a liquid scraping structure 6 is fixedly disposed in the self-destroying pin needle jack 11, and the liquid scraping structure 6 is located on one side of the second sealing member 3 near the start end of the self-destroying pin needle jack 11. The scraping structure 6 is preferably provided as an annular brush or a rubber ring with an inner diameter slightly smaller than the diameter of the pin needle, and the scraping structure 6 is positioned and fixed in an annular groove in the self-destroying pin needle jack 11. The scraping structure 6 can be contacted with the circumferential surface of the pin needle inserted into the self-destruction pin needle jack 11, and the residual flowable-state conductive medium 4 attached to the pin needle is effectively scraped through the contact surface, so that the pin needle corrosion or the pollution to the environment and human body caused by the contaminated flowable-state conductive medium 4 on the pin needle is avoided.

According to some alternative embodiments, the structural strength of the second seal 3 at the location corresponding to the self-destructing pin needle insertion hole 11 is set weaker than the structural strength at other locations thereon. As shown in fig. 5, taking the case of sealing all the self-destruct pin needle insertion holes 11 simultaneously by the entire second sealing member 3 as an example, the second sealing member 3 is provided with a puncture portion 31 at a position corresponding to the self-destruct pin needle insertion hole 11. The puncture section 31 is provided in three main modes: firstly, the puncture part 31 is brittle relative to other parts of the second sealing element 3, for example, a circle of break points or ring grooves are formed on the circumference of the puncture part 31, the break points or ring grooves are thinner than the thickness of other parts of the second sealing element 3, a groove structure is formed, the groove structure can be formed in an injection molding stage or after molding by removing materials, and when axial force is applied, the puncture part 31 is easy to break at the break points or ring grooves, and then is propped into the closed hole section 11a after falling off from the second sealing element 3; secondly, as shown in fig. 5, the thickness of the puncture part 31 is thinner than that of other parts of the second sealing member 3, recesses are formed on both end surfaces of the second sealing member 3, when the puncture part 31 receives axial force, the puncture part 31 is easily broken at the edge or the part abutting against the pin needle, and then the puncture part is abutted into the closed hole section 11a after falling off from the second sealing member 3; as shown in fig. 5, the material of the puncture part 31 is different from the main material of the second sealing member 3, the main material of the second sealing member 3 may be hard plastic, a hole is reserved on the main material, the puncture part 31 is a flexible plastic film sheet, the puncture part 31 may be formed in the hole by injection molding, or may be clamped in a clamping ring groove reserved on the inner wall of the hole by post assembly, and the puncture part 31 is easy to be punctured when receiving the axial force of the pin needle. The structural strength of the position of the second sealing element 3 corresponding to the self-destruction pin needle jack 11 is weaker, so that the conditions that other parts are broken in the process of puncturing the second sealing element 3 by a pin needle, the sealing of a part of the closed hole section 11a is invalid, and the flowing conductive medium 4 flows into other self-destruction pin needle jacks 11 through the broken part to cause short circuit and the like can be effectively avoided.

According to some alternative embodiments, as shown in fig. 6, a sealing ring 5 is connected to the second sealing member 3 at a position corresponding to the self-destruction pin needle insertion hole 11, the sealing ring 5 is fixed on the second sealing member 3 by means of glue, welding, clamping and the like, the sealing ring 5 is tightly matched with the second sealing member 3, and an axial seal and/or a radial seal are formed at a contact surface, so that the leakage of the flowable conducting medium 4 from the joint of the sealing ring 5 and the second sealing member 3 is prevented. One or both end surfaces of the second seal member 3 are provided with seal rings 5. The sealing ring 5 and the self-destroying pin needle jack 11 are coaxially arranged, the inner diameter of the sealing ring is slightly smaller than the outer diameter of the pin needle, the pin needle which can be inserted into the self-destroying pin needle jack 11 passes through and is in close fit with the circumferential surface of the pin needle to form radial sealing, and the sealing ring 5 is in close fit with the pin needle penetrating into the sealing ring and can not completely prevent the pin needle from moving along the axial direction. After the sealing ring 5 is arranged at the position of the second sealing piece 3 corresponding to the self-destruction pin needle jack 11, the shaft end sealing effect of the closed hole section 11a during pin needle insertion can be improved, the leakage of the flowing conductive medium 4 during insertion and matching can be effectively avoided, and the stable electric connection effect during use is ensured.

According to some alternative embodiments, as shown in fig. 3-4 and fig. 7-8, in the case that the second sealing member 3 is disposed in the middle section of the socket 1 and is in sealing connection with the middle section of the self-destroying pin needle jack 11, a liquid draining flow passage 12 is disposed in the socket 1, the liquid draining flow passage 12 is located at one side of the second sealing member 3 near the start end of the self-destroying pin needle jack 11, that is, at the front side of the second sealing member 3, one end of the liquid draining flow passage 12 is communicated with at least one self-destroying pin needle jack 11, and the other end forms a liquid flow passage opening at the outer peripheral surface of the socket 1. Preferably, the liquid drain runner 12 is arranged at the front seat body 1a, the guide is along the radial direction of the socket 1, one end of the liquid drain runner 12 is arranged as an oblate cavity, the other end forms a rectangular runner opening at the outer peripheral surface of the socket 1, and all the self-destroying pin needle insertion holes 11 are communicated by the oblate cavity. The arrangement of the liquid discharge flow channel 12 can enable the flowing conductive medium 4 to flow out from the side of the socket 1, so that the flowing conductive medium 4 can be timely discharged while the flowing conductive medium 4 is prevented from flowing out of polluted equipment along the axial direction, the opportunity of quickly raising the self-destroying pin needle jack 11 to enable the flowing conductive medium 4 to flow back after the self-destroying electric connector is quickly pulled out can be effectively reduced, and reuse is effectively avoided. It should be noted that, when the self-destructing electrical connector is in the plugging state, the runner port of the drain runner 12 should be at least located under the axis of the socket 1, and preferably directly below the axis of the socket 1, so that the flowing conductive medium 4 can be smoothly and rapidly drained through the drain runner 12 after the self-destructing electrical connector is pulled out.

According to some alternative embodiments, as shown in fig. 1-3 and 7-8, the self-destructing electrical connector further comprises an outer insulating sleeve 7, wherein the outer insulating sleeve 7 is sleeved on the socket 1. The outer insulating sleeve 7 is provided with a clamping joint clamped with the other electrical joint at the radial part of the socket 1, and an annular space is formed between the front seat body 1a of the socket 1 and the outer insulating sleeve 7 in order to leave a radial inward turning space for the clamping joint. The outer insulating sleeve 7 is further provided with a positioning key 74 for inserting the foolproof device, besides the positioning key 74, the outer insulating sleeve 7 can be further provided with an arrow 75 for indicating the inserting direction, wherein the positioning key 74 and the arrow 75 are positioned on the same side of the outer insulating sleeve 7 and are sequentially arranged front and back along the axial direction.

According to some alternative embodiments, as shown in fig. 2-3 and 7-8, in the case that the drain flow channel 12 is provided in the socket 1, in order to enable the flowing conductive medium 4 to be smoothly discharged, an extension flow channel 71 is provided in the outer insulating sleeve 7, one end of the extension flow channel 71 is connected and communicated with a flow channel opening of the drain flow channel 12, and the other end of the extension flow channel 71 is formed at the outer peripheral surface of the outer insulating sleeve 7, so that the extension flow channel 71 provided in the outer insulating sleeve 7 can guide the flowing conductive medium 4 in the drain flow channel 12 to be discharged through the outer insulating sleeve 7. It should be noted that, when the self-destructing electrical connector is in the plugging state, the flow port of the extension flow channel 71 should be at least located under the axis of the socket 1, preferably directly under the axis of the socket 1, so that the flowing conductive medium 4 can smoothly flow from the liquid discharge flow channel 12 to the extension flow channel 71 for discharge after the self-destructing electrical connector is pulled out.

According to some alternative embodiments, as shown in fig. 4 and 8, in the case where the drain flow channel 12 is provided in the socket 1, in order to allow the flowable conductive medium 4 to be smoothly discharged without being discharged into the environment, a sealed waste liquid chamber 72 having a certain volume is provided in the outer insulating sheath 7, and the waste liquid chamber 72 communicates with the drain flow channel 12. It should be noted that, when the self-destructing electrical connector is in the mating state, the waste liquid chamber 72 should be located at least below the liquid drain channel 12, preferably directly below the axis of the socket 1, so that the flowable conductive medium 4 can flow from the liquid drain channel 12 into the waste liquid chamber 72. Specifically, the top of the waste liquid chamber 72 is connected to the gate of the liquid discharge flow channel 12 through a small flow channel. Preferably, in order to make the flowable conductive medium 4 smoothly flow into the waste liquid cavity 72, the outer insulating sleeve 7 is further provided with a ventilation hole 73, one end of the ventilation hole 73 is communicated with the waste liquid cavity 72, the other end is communicated with the outer environment, the ventilation hole 73 can be a small hole extending obliquely, one end is communicated with the waste liquid cavity 72, and the other end is communicated with the annulus between the front seat body 1a and the outer insulating sleeve 7. The waste liquid cavity 72 arranged on the outer insulating sleeve 7 can store the flowing conductive medium 4 discharged from the liquid discharge flow channel 12, so that the flowing conductive medium 4 is prevented from being discharged to the environment to pollute the ground or equipment or cables.

On the other hand, the application also provides a disposable endoscope handle which is an important part of the disposable endoscope, and as shown in fig. 1 and 9, the disposable endoscope handle comprises a handle main body 8 and a connecting cable 9, and the handle main body 8 is electrically connected with the connecting cable 9. The handle main body 8 is connected with the host machine through a connecting cable 9.

As a disposable endoscope handle, the handle body 8 is disposable after one use, and the main body is reused.

When the handle body 8 and the connecting cable 9 are detachably connected through the electrical connector, in order to discard only the handle body 8 after one use, the connecting cable 9 is reserved, so that the use cost is saved, and the self-destroying electrical connector can be arranged at the part a shown in fig. 9. Specifically, the electrical connector includes a first electrical connector and a second electrical connector, the first electrical connector is disposed on the handle body 8, the second electrical connector is disposed on the disposable endoscope handle connection end of the connection cable 9, the first electrical connector is a self-destroying electrical connector, and the second electrical connector is a common conventional electrical connector. The host connection end of the connection cable 9 is provided with a third electrical connector, wherein the third electrical connector adopts a common conventional electrical connector.

When the handle body 8 and the connecting cable 9 are not detachably connected or directly and electrically connected through the electrical connector, the handle body 8 and the connecting cable 9 need to be discarded after one use, the self-destroying electrical connector can be arranged at the b part as shown in fig. 9, specifically, the host connection end of the connecting cable 9 is provided with a third electrical connector, and the third electrical connector adopts the self-destroying electrical connector.

In another aspect, the present application also provides a disposable endoscope, as shown in fig. 9, including a disposable endoscope handle and an insertion section mounted to the disposable endoscope handle.

The procedure of use will be described herein by taking one of the possible embodiments of the disposable endoscope of the present application as an example:

the host is provided with a fourth electric connector, and the fourth electric connector adopts a common and conventional electric connector and can establish electric connection when being matched with a third electric connector adopting a self-destruction electric connector.

When a person holds the outer insulating sleeve 7 of the third electric connector of the connecting cable 9 and inserts the fourth electric connector, a pin needle carried by a plug of the fourth electric connector is inserted into the corresponding self-destruction pin needle insertion hole 11, when the pin needle is inserted to a certain depth, the end part of the pin needle is propped against the puncture part 31 of the second sealing element 3, after a little strength is added, the pin needle successfully punctures the puncture part 31 and then enters the sealed hole section 11a, after the third electric connector and the fourth electric connector are inserted in place, the pin needle and the electric connecting element 21 keep a section of distance in the axial direction in the sealed hole section 11a, and the flowable conducting medium 4 is filled in a space between the pin needle and the electric connecting element 21 and is used as an intermediate conductor to electrically connect the pin needle and the electric connecting element 21.

After the use is finished, when a person holds the outer insulating sleeve 7 of the third electric connector of the connecting cable 9 and withdraws from the host, the pin needle carried by the plug of the fourth electric connector gradually withdraws from the closed hole section 11a and is separated from the second sealing element 3, and then is separated from the self-destroying pin needle jack 11. In this process, the flowable conductive medium 4 in the closed hole section 11a flows out to the drain flow path 12 through the broken puncture 31 of the second seal member 3, and then enters the waste liquid chamber 72 through the drain flow path 12 for storage.

When someone takes the connecting cable 9 again to connect with the fourth electrical connector of the host, because the flowable conductive medium 4 in the closed hole section 11a has already at least partially flowed out, and possibly solidified, when the pin needle is reinserted into the closed hole section 11a, the pin needle and the electrical connector 21 cannot be electrically connected through the flowable conductive medium 4, so that the disposable endoscope cannot be reused.

The more the number of the self-destruction pin needle jacks 11 arranged on the self-destruction electrical connector is, the more effectively the disposable endoscope can not be reused.

The self-destroying electric connector can be applied to other electric equipment with disposable requirements, such as a dental drill, besides an endoscope, and is connected with a motor of the dental drill through a cable, so that the motor is connected with the other electric connector connected with a power supply through the self-destroying electric connector for use. The self-destroying electrical connector can also be connected with other electrical devices through cables, and aims to enable the electrical device to lose part or all of functions after the electrical device is connected with a power supply through the self-destroying electrical connector again.

Therefore, in another aspect, the application provides a disposable dental drill, comprising a dental drill handle, a brushless motor arranged in the dental drill handle and a self-destructing electrical connector arranged on an external connection end of a cable and connected with the brushless motor through the cable, so that the brushless motor is connected with the other electrical connector connected with a power supply through the self-destructing electrical connector for use.

The foregoing is merely illustrative embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present application, and the application should be covered.

Claims

1. The utility model provides a self-destruction electrical joint which characterized in that: comprising the following steps:

the socket (1) is provided with at least one axial self-destroying pin needle jack (11), a section of closed hole section (11 a) with two closed ends is formed in the self-destroying pin needle jack (11), and the end of the closed hole section (11 a) close to the starting end of the self-destroying pin needle jack (11) is provided with a structure which can be penetrated by a pin needle to lose the sealing capability of the closed hole section (11 a);

an electrical connector (21) with one end arranged in the closed hole section (11 a) and the other end positioned outside the closed hole section (11 a), wherein one electrical connector (21) is arranged in one closed hole section (11 a);

And the flowable conducting medium (4) is filled in the closed hole section (11 a) and is used for electrically connecting the electric connector (21) with a pin needle penetrating into the closed hole section (11 a) in the closed hole section (11 a), and after the flowable conducting medium (4) flows out of the closed hole section (11 a), the electric connection relationship between the pin needle and the electric connector (21) cannot be established in the closed hole section (11 a).

2. The self-destructing electrical connector of claim 1, further comprising: the socket (1) comprises a front seat body (1 a) and a rear seat body (1 b) which are sequentially butted along the axial direction; the end part of the closed hole section (11 a) close to the starting end of the self-destroying pin needle jack (11) is sealed through a second sealing piece (3), and the second sealing piece (3) and/or the hole diameter of the self-destroying pin needle jack (11) at the closed hole section (11 a) is/are clamped between the front seat body (1 a) and the rear seat body (1 b) in a front-back mode and is larger than the hole diameters of other hole sections.

3. A self-destructing electrical connector according to claim 2 and characterized in that: the front end face of the rear seat body (1 b) is provided with a mounting groove (1 b 1), and the second sealing element (3) is accommodated in the mounting groove (1 b 1).

4. The self-destructing electrical connector of claim 1, further comprising: the end of airtight hole section (11 a) being close to the beginning of self-destruction pin needle jack (11) is sealed through second sealing member (3), be provided with in self-destruction pin needle jack (11) and scrape liquid structure (6), scrape liquid structure (6) are located second sealing member (3) are close to one side at the beginning of self-destruction pin needle jack (11), scrape liquid structure (6) can with insert pin needle circumference face contact in self-destruction pin needle jack (11) is in order to strike off and be attached to on flowable conducting medium (4).

5. The self-destructing electrical connector of claim 1, further comprising: the self-destroying pin needle jack (11) is provided with a plurality of pin needle jacks; the end part of the closed hole section (11 a) close to the starting end of the self-destroying pin needle jack (11) is sealed by a second sealing piece (3); the second sealing piece (3) is arranged as a plate body, the second sealing piece (3) is simultaneously in sealing connection with all the self-destroying pin needle jacks (11), and/or the structural strength of the position, corresponding to the self-destroying pin needle jacks (11), on the second sealing piece (3) is set to be weaker than that of other positions on the self-destroying pin needle jacks.

6. The self-destructing electrical connector of claim 1, further comprising: the end of the airtight hole section (11 a) close to the starting end of the self-destroying pin needle jack (11) is sealed through a second sealing piece (3), a sealing ring (5) which is axially sealed with the self-destroying pin needle jack (11) is connected to the second sealing piece (3) at the position corresponding to the self-destroying pin needle jack (11), and the sealing ring (5) can be inserted into a pin needle of the self-destroying pin needle jack (11) to penetrate through and radially seal with the circumferential surface of the pin needle.

7. The self-destructing electrical connector of claim 1, further comprising: the end of airtight hole section (11 a) is close to the top of self-destruction pin needle jack (11) is sealed through second sealing member (3), be provided with flowing back runner (12) in socket (1), flowing back runner (12) are located second sealing member (3) are close to one side at the top of self-destruction pin needle jack (11), one end of flowing back runner (12) with at least one self-destruction pin needle jack (11) intercommunication, the other end in the outer peripheral face department of socket (1) forms the runner mouth.

8. The self-destructing electrical connector of claim 7, further comprising: the socket also comprises an outer insulating sleeve (7), wherein the outer insulating sleeve (7) is sleeved with the socket (1);

An extension runner (71) is arranged in the outer insulating sleeve (7), one end of the extension runner (71) is connected with a runner port of the liquid discharge runner (12), the other end of the extension runner is connected with a runner port formed at the outer peripheral surface of the outer insulating sleeve (7), or a sealed waste liquid cavity (72) is arranged in the outer insulating sleeve (7), the waste liquid cavity (72) is communicated with the liquid discharge runner (12), a ventilation duct (73) is further arranged in the outer insulating sleeve (7), one end of the ventilation duct (73) is communicated with the waste liquid cavity (72), and the other end of the ventilation duct is communicated with the outer environment.

9. A disposable endoscope handle, characterized in that: comprises a handle main body (8) and a connecting cable (9);

the handle body (8) is detachably connected with the connecting cable (9) through an electric connector, the electric connector comprises a first electric connector and a second electric connector, the first electric connector is arranged on the handle body (8), the first electric connector adopts the self-destruction electric connector of any one of claims 1-8,

Or alternatively, the first and second heat exchangers may be,

the handle main body (8) is electrically connected with the connecting cable (9), and a third electrical connector is arranged at the host connecting end of the connecting cable (9), and the third electrical connector adopts the self-destruction electrical connector as claimed in any one of claims 1 to 8.

10. A disposable endoscope, characterized in that: comprising the disposable endoscope handle of claim 9.